Adjustable beam-clam p



(NO Model.)

'UNITED STATES y PATENT s Ormes..t

ADoIsON n. CARLI., or` BROOKLYN, NEW YORK.

ADJUSTABLE BEAM-OLAM P.

SPECIFICATION forming part of Letters Patent No. 559,025, dated April 28, 1896. Application filed January 20, 189B# Serial No. 576,207. (No model.)

To all whom it may concern.'

Be it known that I, ADDISON B. CARLI., a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented a `new and useful Adj ustable Beam-Clamp, of which the following is a specication.` s

This invention relates to an improvement in adjustable beam-clamps, and has for its object to provide `an improved article of the character Vreferred to, which is composed of sections slidingly related to each other, so that they may be adjusted to fit any size of beam and securely held at any desired adjustment by a novel form of fastening device, the latter also comprising the socket or support for the suspending device.

. Other objects and advantages of the invention will appear in the course of the su bj oined description.

The invention consists in an improved `beam-clamp embodying certain novel features and details of construction and arrangement of parts, as hereinafter fully described, illustrated in the drawings, and finally pointed out in the claims hereto appended.

`In th accompanying drawings, Figure 1 is a perspective view of the improved adjustable beam-clamp in the preferred form. Fig. 2 shows the same in elevation applied to an .overhead beam in section. Fig. 3 is a transverse section through the clamp per se.. Fig.

beam. (Indicated in cross-section at 4.) Abase of the hook is also elevated or slightly` 4 is a detail perspective view of one of the sliding sections of the clamp.

Similarnumerals of reference designate cor-4 responding parts in the several figures of the drawings. l

Referring to the accompanying drawings, the improved clamp is made in twin sections l, each section comprising a longitudinal shank portion 2, which is semicylindrical in cross-section, and a U -shaped or hooked terminal portion 3. The terminal portion 3 of each section is approximately of twice the width or thickness of the shank portion, and the inner working face of the hook is flattened transversely so as to aord a wide bearing of the said hook against the base-flange of te T e removed or offset from the shank 2, as shown at5, the purpose of which will hereinafter appear. f,

The inner adjacent meetingfaces of the two elamp-sectionsare dat and disposed fiatwise against each other, being preferably left smooth, so that they may slide upon and be adjusted relatively to each other., When the shank portions of the sections are brought together, as shown in Fig. 1, they form a bodyI which is, preferably, cylindrical in cross-section, whereby they are adapted to be received in and surrounded by a sleeve 6. The bore of this sleeve corresponds to the external diameter of the combined shanks 2 and is formed within said bore with a series of annular grooves or kerfs 7, adapted to engage with teeth 8 on the outer rounded surfaces of the shanks 2, the said teeth being located at intervals corresponding to the intervalsI of the grooves 7. The sleeve 6 -is also formed with longitudinal grooves 9, diametrically opposite to each other, or so disposed that when the sleeve is turned into a certain position the grooves 9 will register with and receive the teeth 8, thus adapting the sleeve to be moved longitudinally upon the shanks 2 ofthe clampsections, or, in other words, adapting the said shanks to be moved longitudinally through the sleeve 6 and slid upon and adjusted relatively to each other. In this manner the distance between the hooked terminal portions of the sections 1 may be varied at will, and when brought into the desired relation the sleeve 6 may be partially rotated,so as to bring the grooves 7 thereof into engagement with the teetlrS, thus locking the sections rn ly in their adjusted positions.V

The `bases of the hooked 4terminals of the loe and to receive anut upon its upper end, the

said nut being inserted in the space between the upper surface of the base and the exterior surface of the sleeve in a manner that will be readily understood. In applying the deviceto abeam the sleeve is turned until the grooves 9 register with the teeth 8, after which the 4opposing sections of the clamp are slid upon each other until the hooked terminals thereof are brought into firm engagement with the base-flange of the beam. The sleeve 6 is nowl given a quarterturn until brought into the position shown in the drawings,-Whereupon the said sections are locked securely together and prevented from spreading and releasing their grip uponthe beam. The pipe-hanger or other suspending device may now be introduced, as above described. The extremities of the hooks 3 are preferably sharpened or brought to an edge, as shown, so that they may be driven to place Where the beam is embedded in brickwork.

Changes in the form, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of this invention.

Having thus described the invention, what is claimed as new is p 1. A beam-clamp comprising two similar sections having their ends formed to engage a beam and provided with overlapping portions having a longitudinal sliding relation, and a sleeve surrounding said overlapping portions and adapted to engage and lock the same, substantially'as and for the purpose described.

2. An adjustable beamlamp, comprising two similar sections formed to engage a beam and having overlapping portions slidingly related to each4 other and provided each with a plurality of teeth, and a sleeve surrounding said overlapping portions and mounted to turn thereon, the said sleeve being formed with annular grooves within its bore and being also provided Within said bore with longitudinal grooves adapted to be brought into alinement with the teeth of the clamp-sections, substantially as and for the purpose described.

3. An adjustable beam-clamp, comprising two similar sections having their terminal portions formed to engage a beam and provided with overlapping shanks having a sliding relation to each other and being substantially semicylindrical in cross-section, and a sleeve surrounding said overlapping shanks and having provision for lookin g the same together, the said sleeve being provided with a" socket for the reception of a suspending device, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of two witnesses.

ADDISON B. CARLI, Witnesses:

ERNEST E. THOMAS, SAMUEL J. HARVEY. 

